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A kind of pure electric vehicle heat pump system defogging closed-loop control system and control method thereof

A pure electric vehicle and heat pump system technology, applied in the pure electric vehicle heat pump system defogging closed-loop control system and its control field, can solve the problems of inability to take into account the comfort of the passenger compartment, reduce the energy consumption of the defogging function, etc., to ensure driving safety. Effect

Active Publication Date: 2022-05-27
FAW CAR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The present invention aims to propose a pure electric vehicle heat pump system defogging closed-loop control system and its control method, through the temperature and humidity defogging sensor, real-time calculation and judgment of the windshield defogging effect, corresponding to different fogging conditions, formulate different The control strategy maximizes the advantage of heat pump heating energy consumption. Through the switching of the air conditioning function, the defogging effect can be matched with the air conditioning state, reducing the energy consumption of the defogging function. The problem of comfort, saving electric energy, and improving the driving range of electric vehicles in high and low temperature environments

Method used

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  • A kind of pure electric vehicle heat pump system defogging closed-loop control system and control method thereof
  • A kind of pure electric vehicle heat pump system defogging closed-loop control system and control method thereof
  • A kind of pure electric vehicle heat pump system defogging closed-loop control system and control method thereof

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Experimental program
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Effect test

Embodiment 1

[0077] like figure 1 As shown, a pure electric vehicle heat pump system defogging closed-loop control system includes an acquisition module, a control module, a heating and cooling module, and an air distribution module. The cooling module is connected to the air distribution module.

[0078] The acquisition module includes: a glass temperature and humidity sensor 131 , an indoor temperature sensor 132 , an external temperature sensor 133 , a sunlight sensor 134 , an evaporator temperature sensor 135 , and a water temperature sensor 136 .

[0079] The control module includes: an air conditioner controller 110 and an air conditioner panel 120 .

[0080] The heating and cooling module includes: a heat pump system 140 , a PTC heater 150 , an evaporator 102 , and a heater core 104 .

[0081] Air distribution module includes: HVAC 100.

[0082] like figure 2 As shown, the air distribution module includes an outer circulation air inlet 109a, an inner circulation air inlet 109b,...

Embodiment 2

[0090] A control method of a pure electric vehicle heat pump system defogging closed-loop control system, such as image 3 shown, including the following steps:

[0091] Step S10. After the air conditioner works, the air conditioner controller 110 collects the readings of the glass temperature and humidity sensor 131 and the readings of the indoor temperature sensor 132 in real time.

[0092] Step S20. The air-conditioning controller 110 calculates whether the dew point temperature of the indoor air is higher than the glass temperature, as a basis for judging whether the dew point temperature is higher than the glass temperature. If the temperature is lower than the glass temperature, it is determined that the glass is not fogged, and the process proceeds to step S302.

[0093] Step S301. The air-conditioning controller 110 feeds back the position of the circulation damper 108 to determine whether it is in the defogging mode. If it is not the defogging mode, the air-condition...

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Abstract

The invention discloses a pure electric vehicle heat pump system defogging closed-loop control system and a control method thereof. The temperature and humidity defogging sensor is used to calculate and judge the defogging effect of the front windshield in real time, and to formulate different defogging conditions corresponding to different fogging conditions. Control strategy, including low load balance mode, medium load balance mode, high load balance mode, fog removal low load mode, fog removal medium load mode, and fog removal high load mode. Through the hierarchical defogging mode, the advantage of heat pump heating energy consumption is utilized to the maximum extent. Through the switching of the air conditioning function, the defogging effect and the air conditioning state are matched to reduce the energy consumption of the defogging function. At the same time, it solves the problem that the defogging mode cannot be balanced The problem of the comfort of the passenger compartment, saving electric energy, and improving the driving range of electric vehicles in high and low temperature environments.

Description

technical field [0001] The invention relates to a method for defogging a heat pump of an electric vehicle, in particular to a closed-loop control system for defogging a heat pump system of a pure electric vehicle and a control method thereof, which takes into account the energy consumption of air conditioning and the temperature stability of the passenger compartment. Background technique [0002] In recent years, the automobile industry is undergoing great changes, and one of the most important issues is the new four modernization strategy of automobiles. China's "New Energy Vehicle Industry Development Plan (2021-2035)" clearly points out that it is necessary to aim at the direction of "electrification, networking, and intelligence", coordinate development and safety, strengthen the coordination of policies, standards and regulations, and accelerate the improvement of the safety supervision system. Solidly promote the construction of a powerful automobile country. And ele...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60H1/00B60S1/02B60S1/54
CPCB60H1/00735B60H1/00785B60H1/00814B60H1/00007B60S1/026B60S1/54Y02T10/88
Inventor 赵萌苏玲王淼李鑫龙栗顺齐霁徐聪刘清欣梁宵黄博
Owner FAW CAR CO LTD
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